人工衛星観測
1. Satellite watchingSatellite watching or satellite spotting is a hobby which consists of the observation and tracking of Earth artificial satellites. People with this hobby are variously called satellite watchers, trackers, spotters, observers, etc.
Read “Satellite watching” on English Wikipedia
Read “人工衛星観測” on Japanese Wikipedia
Read “Satellite watching” on DBpedia
Read “Satellite watching” on English Wikipedia
Read “人工衛星観測” on Japanese Wikipedia
Read “Satellite watching” on DBpedia
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